(AP) — A Tesla driver was killed and a passenger was critically injured Saturday when the car plowed into a fire truck that was parked on a Northern California freeway to shield a crew clearing another accident, fire officials said. Four firefighters who were in the truck when it was struck on Interstate 680 were treated for minor injuries, said Tracie Dutter, assistant chief of the Contra Costa County Fire Protection District. Photos showed the front end of the car was crushed and the $1